Use of quaternaries compound in floating silicate mineral

A technology of salt compounds and silicate minerals, applied in flotation, solid separation, etc., can solve problems in the field of flotation of silicate minerals that have not been seen, and achieve excellent collection capacity, good flotation desilication efficiency, The effect of strong harvesting ability
CN101337204AActive Publication Date: 2009-01-07CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2009-01-07

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Abstract

The invention relates to the field that biquaternary ammonium compounds are applied in silicate mineral flotation, and discloses a collector which applies the biquaternary ammonium compound with the constitutional formula shown as the formula I in bauxite or ironstone reverse flotation desiliconization. In the formula I, R<1> and R<2> are alkyls with 6-18 carbon atoms; R<3>, R<4>, R<5> and R<6> are respectively methyl, ethyl, -(CH2CH2O)nH, or -(CH(CH3)CH2O)nH, wherein, n is equal to 1-6; R<7> is alkylene with 2-6 carbon atoms; and X is Cl, Br or I. The collector of the invention has strong ability to collect quartz, kaolinite, illite and pyrophyllite, and is applicable to the silicate mineral separation from the bauxite or ironstone by reverse flotation, the suitable pH range of the flotation pulp is 5-13, and the dosage is equal to 50-500 g / t according to the content change of the silicate mineral in ores.
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Description

[technical field]

[0001] The invention relates to a novel silicate mineral flotation collector, in particular to the application of diquaternary ammonium salt compounds in reverse flotation desiliconization of bauxite or iron ore. [Background technique]

[0002] In the reverse flotation desiliconization process of iron ore and bauxite, research on new and efficient silicate mineral flotation collectors is a key factor to improve the separation index. Traditional silicate mineral flotation collectors include fatty acid anion collectors and fatty amine cationic collectors. At present, when using fatty acid anionic collectors for iron ore reverse flotation desiliconization, it is necessary to adjust the pH value of the ore pulp to above 11, use calcium ions to activate silicate minerals such as quartz, and use starch, lignosulfonate or Inhibiting iron minerals such as dextrin has the disadvantages of many types of agents, large dosage, and high production costs. Generally, it ...

Claims

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